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Finding the Fourth Proportional to 26,588.55, 39,868.72 and 7,866.01

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Solution

The fourth proportional to 26,588.55, 39,868.72 and 7,866.01 is: 11,794.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,588.55 : 39,868.72 = 7,866.01 : x
  2. Step 2: Convert to fraction form
    26,588.55/39,868.72 = 7,866.01/x
  3. Step 3: Cross multiply
    26,588.55x = 39,868.72 × 7,866.01
  4. Step 4: Simplify right side
    26,588.55x = 313,607,824.62
  5. Step 5: Solve for x
    x = 313,607,824.62/26,588.55
  6. Step 6: Final answer
    x = 11,794.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.